α-hydroxy-β,β-dimethyl-γ-butyrolactone

Melting point / freezing point

Administrative data

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

28.08.2009 - 21.10.2009

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: According to guideline under GLP

Cross-reference

Reason / purpose for cross-reference:

reference to other study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2009

Report date:

2009

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

Principles of method if other than guideline:

Not relevant

GLP compliance:

yes (incl. QA statement)

Type of method:

thermal analysis

Test material

Test material information

Constituent 1

Reference substance name:

α-hydroxy-β,β-dimethyl-γ-butyrolactone

EC Number:

209-963-3

EC Name:

α-hydroxy-β,β-dimethyl-γ-butyrolactone

Cas Number:

599-04-2

Molecular formula:

C6H10O3

IUPAC Name:

(3R)-3-hydroxy-4,4-dimethyloxolan-2-one

Constituent 2

Reference substance name:

209 963 3

IUPAC Name:

209 963 3

Details on test material:

- Name of test material (as cited in study report): R-Pantolactone
- Physical state: solid
- Purity: 99.6%
- Storage condition of test material: RT

Results and discussion

Melting / freezing point

Melting / freezing pt.:

90.4 °C

Atm. press.:

99.2 kPa

Any other information on results incl. tables

No further remarks

Applicant's summary and conclusion

Conclusions:

The melting point of R-Pantolactone was determined to be 90.4 °C.

Executive summary:

The melting point of R-Pantolactone was determined to be 90.4 °C which is equal to 363.6 K

using the thermal analysis (DSC).The atmospheric pressure during the measurements was 99.2 kPa.